Picker-check for looms.



Unirse STATES PATENT @mea DAVID WOOD SHIRREFFS, OF OSWEGO FALLS, NEW YORK.

PloKER-CHEQK FoR Looivls.

SPECIFICATION forming part of Letters .Patent No. 661,083, dated November 6, 1900.

Application tiled April 2. 1898. Serial No. 676,200l (No model..I

To a/ZZ whom it 1v1/ty concern:

Be it known that I, DAVID WOOD SHIR- REFFS, a citizen of the United States, residing at Oswego Falls, inthe county of Oswego and State of New York, have invented a new and useful Picker-Check, of which the following` is a specification.

My invention relates to improved means for checking or stopping the shuttles used in power-looms after the shuttle has been cast or thrown, in the process of weaving, into the shuttle-box, one object of my invention being to provide means to take the place of cloth packing or waste or other substances sometimes used in this position, but which produce too sudden a shock in stopping the shuttle.

A further object of my invention is in thus obviating and preventing the sudden stoppage and checking of the shuttle to prevent frequent breakages in the yarn or filling, especially vin the case of soft yarn or filling and soft bobbins, to prevent the loosening or unwinding of the yarn or lling from the bobbin when the shuttle is stopped, and to permit of the loom being run at a higher speed to produce more cloth.

My invention further consists in the improved construction, arrangement, and combination of parts hereinafter fully described and afterward specifically pointed out in the.

appended claim.

In order to enable others skilled in the art to which my invention most nearly apper` tains to make and use the same, I will now proceed to describe its construction and operation, reference being had to the accompanying drawings, forming part of this specification, in which-.-

Figure l is a View in side elevation of a shuttle-check constructed in accordance with my invention. Fig. 2 is a view thereof in edge elevation. view on the line 3 3 of Fig. 1. Fig. 4 is adetail sectional View on the line44 of Fig. l.

Like letters of reference mark the same parts Wherever they occurin the different figures of the drawings. A

Referring to the drawing by letters, A represents the main frame of the device, which should be constructed suiiciently strong to support the other parts. It consistsof a plate of metal bowed or formed with an angle at B Fig. 3 is a detail sectional and provided with an arm (l at an inclination to the main body. At the angle B is formed an opening through which to pass the bolt for securing the device to the shuttle-box.

E is a stud upon which is secured one end of a strap F,which passes from the stud over a spool G, mounted on a pin H and held by a split pin H', the pin H bein'g threaded into the main plate at the angle formed by its junction with its branch or arm C. The strap is continued a short distance after passing around the spool G and is provided with a perforation to receive the hook end I' of a coiled spring I, which has its opposite end hook I2 engaged in a perforation in the strap J, which passes partially around a stud K in the outer end of the arm C and is engaged over a radial pinL, projecting from the stud, so that when the stud is turned the strap will be wound around it. When the stud is turned to adjust the strap in this respect, it is securely clamped in this position by a nut M. A reinforcing-strap N is secured to the strap F by means of a bolt O and forms a buffer to receive the blow of the shuttle. By means of the spring I an elastic tension is given to the strap F, and by means of the connection of the strap J with the adjustable stud K the tension of the spring and strap F is regulated at the will of the operator., The frame A, as before stated, is fastened to the shuttle-box by means of a bolt passing through the opening D in such a position that the impact or blow in the end of the shuttle in the proc-ess of weaving is received on the strap F or the reinforcing butter-strap N, causing the spiral spring to yield and the. leather strap F at the same time to pass slightly over the spool G andto swing back, stopping the shuttle gently without violent shock.

y While I have illustrated and described what I now consider efficient means for carrying out my invention, I do not wish to be Iunderstood as limiting myself to the exact details of construction shown and., described, but hold that such slight changes or variations as might suggest themselves to the ordinary inechanic would properly fall within the limit and scope of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure-by Letters Patent of the United States, is*

In a picker-check, the combination with a. bow-shaped base, the bend ofwhich is` perfoi-ated and one end of which is provided with an arm which extends at an inclinationto the rear of the bow, the free end of the erm being perforated, e stud and a spindle at the respective ends of the base, a. stud` in the perforation at the endof the arm, the intermediate portion of which is provided with a radially-projecting stud the end through the perforation being screw-threaded and provided with e clamping-nut and the opposite end being angular whereby it may be adjusted and secured to the arm, a spool loosely jonrnaled upon the spindle, a strap secured V5 to the studs at the end of the bow and the free end of the arm, respectively, one of which straps is longer than the other and is passed over the spool, and a coiled spring secured at its ends tothefree ends of said straps, subzo stantially as described.

DAVID WOOD SHIRREFFS.

Witnesses: EDWARD A. HOGAN, MATILDA A. BAKER. 

